As Hacker News is filled with people who are well versed it IT, I would like to ask readers to share their personal backup strategies for their preferred operating system and what tools they use. Also, for those willing to share, are you performing full system backups or just backing up your important files?
I just have a cron job running a simple bash script on all my machines (Linux, macOS) that compressess all my personal files (mainly configs and docs) on a daily basis. It then uploads it to a local NAS (just two USB sticks connected to a Raspberry Pi; might upgrade to a proper homelab at some stage). This is in turn backed up to Filen (Germany based). The backups include 30 daily backups + 12 monthly backups.
As for system-level backups, I just use btrfs automatic snapshots (via Snapper).
Mac: I use Parachute Backup to keep a local copy of my iCloud files and photos on an external drive. Backblaze backs the external drive and all local working files (roughly 16TB altogether) up for ~$100/year.
As for system-level backups, I just use btrfs automatic snapshots (via Snapper).